Description:

HF20A is a multi-purpose short-wave full-length single-line traveling wave antenna with high radiation efficiency and convenient installation. It can be used for personal portable stations and temporary base stations in the field. Used to compensate for the presence of NVIS blind spots in general antennas. When the cable is erected, the 25W~50W portable platform can be used for 0~800km, and the 125W vehicle can be used for 0~1500km. When the flat pull is erected, the directional communication distance is further.

Specification:

1. Maximum power: 1000W, average power: 50W

2. Working frequency: 0.5-30MHZ, SWR<2.0

3. Standard vibrator: 20 meters

4. Vibrator material: 1-1.5mm multi-strand copper core wire

5. Stainless steel ground nail: 2 pieces (self-provided)

6. uses a larger and better magnetic ring, so that the parameters are more ideal! Can withstand 200W of high power (when production, it must be tested by 200W high power for a long time).

Installation prompt:

1. The roof is fixed for a long time. It is not necessary to use the ground anchor when installing. Connect the two tail ends of the antenna directly with one wire to connect the two tail ends, or directly connect the two tail ends directly. SWR Ideal, simple and practical. (The basic condition for the operation of this antenna is that the two tails must form an indirect or direct loop to work)

2. In actual outdoor use, if the ground anchor is not in good contact, the antenna will not form a loop, and the SWR will be high. You can pour water to the ground anchor to create a good circuit for the earth to lower the SWR. If the ground anchor cannot be used in the rock area, the two tail ends of the antenna can be directly connected and used to form a 'triangle' and other variant shapes to work.

3. Generally, the height of the antenna will affect his radiation efficiency and distance. Generally, the antenna is a little higher, the angle is larger, the radiation will be better, the distance will be far, the blind zone will be larger, the installation will be lower, or the angle will be smaller. The radiation is almost the same, the communication distance is close, and the blind spot is less.

4. The length of the vibrator has little effect on the SWR. In theory, the longer the vibrator, the higher the radiation efficiency.

5. When using for long-term fixed use, it is necessary to do anti-rust treatment of the screw. It can be applied with butter to prevent the screw from rusting and waterproof (waterproof inside the antenna part and cause damage)

Pacakge included:

1 x Set of HF20A Short Wave Antenna